Message board clock



FIG. 1 is a front and right side perspective view of a message board clock showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevation thereof;

FIG. 5 is a left side elevation thereof;

FIG. 6 is a back elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a message board clock, as shown and described. 